(19)
(11) EP 3 769 192 A1

(12)

(43) Date of publication:
27.01.2021 Bulletin 2021/04

(21) Application number: 19708204.3

(22) Date of filing: 11.02.2019
(51) International Patent Classification (IPC): 
G06F 3/041(2006.01)
G06F 3/044(2006.01)
(86) International application number:
PCT/US2019/017435
(87) International publication number:
WO 2019/182692 (26.09.2019 Gazette 2019/39)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 22.03.2018 US 201815933089

(71) Applicant: QUALCOMM INCORPORATED
San Diego, California 92121-1714 (US)

(72) Inventors:
  • WADHWA, Sameer
    San Diego, California 92121 (US)
  • MCINTYRE, James Hendrie
    San Diego, California 92121 (US)
  • SRIPURAM, Raghunatha Reddy
    San Diego, California 92121 (US)
  • LIU, Kezhen
    San Diego, California 92121 (US)

(74) Representative: Schmidbauer, Andreas Konrad 
Wagner & Geyer Partnerschaft mbB Patent- und Rechtsanwälte Gewürzmühlstrasse 5
80538 München
80538 München (DE)

   


(54) APPARATUS AND METHOD FOR DIGITALLY DRIVING TOUCHSCREEN PANELS WITH TRANSMIT SIGNALS BASED ON PULSE WIDTH MODULATED (PWM) SIGNALS